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+# PDF Engine — Windows Development Commands
+
+## Windows Environment
+
+Always use:
+
+```text
+Developer PowerShell for VS 2022
+```
+
+This ensures:
+
+* MSVC compiler works
+* C++ standard library paths are loaded
+* CMake works correctly
+
+---
+
+# 1. Configure Project
+
+Use when:
+
+* adding new `.cpp` files
+* modifying `CMakeLists.txt`
+* changing presets
+
+```powershell
+cmake --preset windows-debug
+```
+
+## What it does
+
+* Reads `CMakePresets.json`
+* Loads vcpkg toolchain
+* Finds installed libraries
+* Generates Ninja build files
+
+---
+
+# 2. Build Project
+
+Use after changing C++ code.
+
+```powershell
+cmake --build --preset windows-debug
+```
+
+## What it does
+
+* Compiles `.cpp` files
+* Links FreeType + HarfBuzz
+* Builds `pdfengine`
+
+---
+
+# 3. Run Tests
+
+Use to verify:
+
+* wrappers
+* font engine
+* integration tests
+
+```powershell
+ctest --preset windows-debug
+```
+
+## Expected Output
+
+```text
+100% tests passed
+```
+
+---
+
+# 4. Fresh/Clean Rebuild
+
+Use when:
+
+* cache issues occur
+* compiler mismatch happens
+* strange errors appear
+
+```powershell
+cmake --preset windows-debug --fresh
+cmake --build --preset windows-debug
+```
+
+## What `--fresh` does
+
+* Deletes old cache
+* Regenerates Ninja files
+* Reconfigures compiler/toolchain
+
+---
+
+
+
+
+
+
+
+
+
+
+```powershell
+cmake --preset windows-debug
+cmake --build --preset windows-debug
+ctest --preset windows-debug
+```
+
+---
+
+```